^^I'm waiting for the meme with "Marines who think they can beat a giant goose vs. Marines who can actually beat a giant goose." (With the punchline being, of course, that the goose wins.)
Alternately, the origin story for the sisters of battle?
Father: "I know you want to be a Marine, but you're not quite Astarates material, Jimmy. So put on this armor and train with this goose for a while. We'll get you into the Emperor's chosen yet."
Jimmy: "Where's the codpiece dad?"
Father: "You won't be needing that part."
(By reputation this is how you got your talented son into the Papal choir, at least if he was good enough. And if he wasn't? Well, he was your seventh son, after all.)
Anyway, glorious goose!